If you get "Access violation" because of DirectMusic error or you get "C:zMusic_DM.cpp( zCMusicSys_DirectMusic::Init())Failed to create loader object!" error on launch, this is because DirectMusic library changed its location in newer Windows versions.

You need to manually activate those DirectMusic related libraries through "cmd".
Make sure you launch your "cmd" as admin after that copy, paste and press Enter for every line one after another:

cd %SystemRoot%\System32\
regsvr32 dmusic.dll
regsvr32 dmloader.dll
regsvr32 dmsynth.dll
regsvr32 dswave.dll
cd %SystemRoot%\SysWOW64\
regsvr32 dmusic.dll
regsvr32 dmloader.dll
regsvr32 dmsynth.dll
regsvr32 dswave.dll
regsvr32 dmband.dll
regsvr32 dmcompos.dll
regsvr32 dmime.dll
regsvr32 dmscript.dll
regsvr32 dmstyle.dll

I did not find this fix, the fix was posted by Mikki here.[rpgrussia.com]